do-while()用法

do-while()循环适合于运用在交互程序中，

 

d0-while()循环妙用  
 do   
 {          int val1,val2;  
     cout<<"please enter  two values";  
     cin>>val1>>val2;  
     cout<<"The sum of "<<val1<<"and"<<val2 
         <<"="<<val1+val2<<"\n\n\n"  
         <<"More ? [yes][no]";  
     cin>>rsp;  
 
 }while(!rsp.empty()&&rsp[0]!='n');